{"database": "fitbit", "table": "heart_rate_zones", "rows": [["2015-03-29", 1139, 158, 7, 66]], "columns": ["date", "below_zone_1", "in_zone_1", "in_zone_2", "in_zone_3"], "primary_keys": ["date"], "primary_key_values": ["2015-03-29"], "units": {}, "query_ms": 2.32980000146199}